Dendritic structured palladium complexes: magnetically retrievable, highly efficient heterogeneous nanocatalyst for Suzuki and Heck cross-coupling reactions

Abstract

The recyclable nanomagnetic Pd-complex PAMAM G0-Pd@γ-Fe2O3 is reported for catalytic C–C cross-coupling reactions of challenging substrates.

New sustainable and robust catalytic supports for palladium nanoparticles generated from chitosan/cellulose film and corn stem biochar

“…The same cross-coupling product yield was obtained by the Pd/CCF catalyst described in the present manuscript employing a higher amount of Pd (entry 7). Identical results in terms of 4-methoxybiphenyl yield were found using cellulose acetate thin film (Faria et al 2014 ), soil-derived humic acid-coated iron oxide NPs (Chinchole et al 2019 ), and dendritic structure (Sheikh et al 2022 ) as catalytic supports of Pd NPs (entries 4, 8, 9). On the other hand, very interesting results are reported employing Pd NP biosynthesis through plant extracts (entries 2, 3, 5).…”

“…Pd NP biosynthesis by black tea leaves ( Camellia sinensis ) extract 0.1 96 Lebaschi et al ( 2017 ) 3 No support. Pd NP biosynthesis by Hibiscus sabdariffa L. flower extract 0.2 85 Hekmati et al ( 2017 ) 4 Dendritic structure 0.47 90 Sheikh et al ( 2022 ) 5 No support. Pd NP biosynthesis by yerba mate aqueous extract 0.5 91 Schmitt et al ( 2021 ) 6 Corn stem biochar 0.5 78 This work 7 Chitosan/cellulose film 0.5 96 This work 8 Soil-derived humic acid-coated iron-oxide NPs 0.65 90 Chinchole et al ( 2019 ) 9 Cellulose acetate thin film 1.0 90 Faria et al ( 2014 ) …”

Magnetically modified Schiff base‐Pd complex: An efficient heterogeneous catalyst for Suzuki–Miyaura cross‐coupling and dyes degradation reaction

“…In these endeavors, catalysis is at the top of the list for the discovery of new chemical transformations. [1] The development of effective and easily recoverable catalysts is a popular study area in the field of chemistry due to its importance in the economy and ecology. [2][3][4] The application of heterogeneous catalysts has grown significantly in the field of inorganic and organic chemistry, [5,6] as it is very difficult to reuse homogenous catalysts after the reaction, due to its challenges in separation from the reaction medium.…”

Promotion of Suzuki–Miura reaction under bimetallic green catalyst

“…The organic ligands considered in this project must have amide and amine bonds to easily connect to the surface of the catalyst and improve the performance of the nanocomposite. 12 So far, the structure of the nanocomposite, similar to the structure of its ionized liquid, can achieve many reactions without metals, but the existence of a series of problems has resulted in an urgent need for metal nanoparticles. One of the major problems of the ionic liquid is the low percentage of products obtained, the long time spent on the reaction and the change in the pH of the ligands in different acid-base conditions.…”

“…The organic ligands considered in this project must have amide and amine bonds to easily connect to the surface of the catalyst and improve the performance of the nanocomposite. 12…”